Physics Exam Past Questions and Answers | JAMB, WAEC and NECO

Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.

• Question 131: Which of the following statements is correct about light and sound waves? Both Options:
  A) are longitudinal waves
  B) are transverse waves
  C) have the same velocity in air
  D) need a medium for propagation
  E) transmit energy
  Show Answer
  The correct answer is E .
• Question 132: The motion of smoke particles from a chimney is typical of? Options:
  A) random motion
  B) circular motion
  C) rotational motion
  D) oscillatory motion
  Show Answer
  The correct answer is A .
• Question 133:

  The main factor which affects the speed of sound wave is the?

  Options:
  A) properties of the medium
  B) amplitude of the sound wave
  C) intensity of the sound wave
  D) loudness of the sound wave
  Show Answer
  The correct answer is A .
• Question 134: A man 1.5m tall is standing 3m in front of a pinhole camera whose distance between the hole and the screen is 0.1m. What is the height of the image of the man on the screen? Options:
  A) 0.05m
  B) 0.15m
  C) 0.30m
  D) 1.00m
  Show Answer
  The correct answer is A .
• Question 135: A magnetic needle is suspended first at the earth's north magnetic pole and then at a point on the magnetic equator. The respective angles between the needle and the horizontal are Options:
  A) 0^o and 0^o
  B) 60^o and 60^o
  C) 90^o and 90^o
  D) 90^o and 0^o
  E) 0^o and 90^o
  Show Answer
  The correct answer is D .
• Question 136: The general equation of a wave CANNOT be written as Options:
  A) y = A Sin [2 π ($\frac{t}{T}$ ± Xλ)]
  B) y = A Sin [wt ± kx]
  C) y = A Sin [2 $\frac{\pi }{\lambda }$ (vt ± x)]
  D) y = A Sin [2π (ft ± $\frac{X}{\lambda }$ )]
  E) y = A Sin 2 π f(T ± $\frac{X}{\lambda }$)]
  Show Answer
  The correct answer is E .
• Question 137:

  A force, 10N, drags a mass 10kg on a horizontal table with an acceleration of 0.2ms. If the acceleration due to gravity is 10ms^-1, the coefficient of friction between the moving mass and the table is

  Options:
  A) 0.02
  B) 0.08
  C) 0.20
  D) 0.80
  Show Answer
  The correct answer is B .
• Question 138:

  The statement 'Heat lost by the hot body equals that gained by the cold one' is assumed when determining specific that heat capacity by the method of mixtures. Which of the following validates the assumption?

  I. Lagging the Calorimeter

  II. Ensuring that only S.I units are used

  III. Weighing the calorimeter, the lid and the stirrer.

  Options:
  A) I only
  B) I and II only
  C) I and III only
  D) II and III only
  Show Answer
  The correct answer is C .
• Question 139:

  The Earth's magnetic equator passes through Jos in Nigeria. At Jos, the

  Options:
  A) angle of variation is zero
  B) magnetic declination is 90
  C) angle of dip is zero
  D) horizontal component at the Earth's field is zero
  Show Answer
  The correct answer is C .
• Question 140: The resistance of an open series circuit is Options:
  A) zero
  B) half the normal resistance of the circuit
  C) double the normal resistance of the circuit
  D) one
  E) infinite
  Show Answer
  The correct answer is E .